Wire straightener



A. 'H. N ILSON.

WIRE STRAIGHTENER.. APPLICATION FlLED'DEC.2 7, 1920.

1,414,371 Patented May 2, 1922.

INVENTOR.

Axel H. Nilson/ W' MWA TTORNEYS. v

I UNITED .STATES PATENT OFFICE.

AXEL H. NI'LSON, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE A. H. NILSON MACHINE 00., OF BRIDGEPORT, CONNECTICUT, Av CORPORATION OF CONNECTICUT.

WIRE STRAIGHTENER Specification of Letters Patent.

Patented May 2, 1922.

Application filed December 27, 1920. Serial No. 433,288.

To all whom it may concern: 1

Be it known that 'AXEL H. NILSON, a

citizen of the United States, and resident of.

This invention relates to wire straighten ers and refers more particularly to that class of straighteners used in connection with wire forming machines and through which the wire is passed preparatory to the cutting and bending operations.

Wire straightening devices of this class usually 'include two sets of straightening rolls, positioned adjacent to each other, and through which the wire to be straightened is passed. These two sets are further arranged at right angles to each other so that one series of rolls willtoperate in a vertical plane, and in this respect my present invention is similar.

The object of the invention is to provide a wire straightening device that is adapted for all required adjustments to accommodate different sizes of wire. Further to provide adjusting means whereby the guide rolls between which the wire passes, may be adjusted both to and from the wire, when threaded therebetween, and sidewise to and from each other, which is particularly desirable to bet-' ter accommodate wires of different thickness, since I find that the thicker the wire the further apart the rolls should be spaced in both directions.

The construction and arrangement of the two sets of rolls are alike in construction and each set preferably includes a' series of five rolls, two upon one side and three upon the other, their position being staggered with relation to each other. In this respect it is also a feature of the device that while all of the rolls are made adjustable toward and from the wire, yet a portion of them only need be made adjustable sidewise, the lower center roll having no sidewise movement, and is adapted for adjustment to and from the wire only.

With these and other objects in view-the invention resides and consists in the construction and novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion, size and minor detail-s of construction within the scope of the claims may be resorted to without departure from the spirit or sacrificing any of the advantages of the invention.

Similar characters of reference denote like or corresponding parts throughout the several figs. of the accompanying drawings forming a part of this specification, and upon which,

Fig. 1 shows a plan view of my improved form of wire straightener.

Fig. 2 is a cross sectional view,'partly in elevation, taken on line 2-2 of Fig. 1, and

Fig. 3 is a detail sectional view taken on line 3-3 of Fig. 1.

It will be noted that each roll is specially positioned with reference to the other rolls, and operate similarly and in conjunction with each other as the wire is drawn through. It is further to be observed that each roll -is mountedon a separate slide, and which of both. These beds are each provided with shouldered guide ways 10-10 and longitudinal grooves 11-11 adjacent to their outer raised edge portions 1212. The two guide slots 13 and 13 in the base are located near the center of the base. In the guideslot 13 is a screw 14 and in the guide slot 13' is a somewhat similar screw 15. The end ortions of these screws are journalled in the base, and provided with attached operating handles 16 by means of which the screw may be turned. A right hand thread is cut on one end portion of each screw and aleft that is adjustment in the direction of the length of the wire. The .rolls are each mounted on a separate holder having independent means for vertical or crosswise adjustment. These holders in turn are each guided in a shoe which like the holder and roll are of similar construction.

One threaded end portion of the upper screw 14 engages the shoe 17 mounted in one end portion of the guideway 13 while the other threaded end' portion engages a similar shoe 1? Efitted in the other end portion of the same'guideway. Each of these shoes include a way 18 in which a holder -.19 is mounted and adapted to be moved backward and forward at aright angle to the movement of the shoe. of the holder 19 are obtained 'by the independent adjusting screws 20 provided with operating handles 21 for turning the same and having collars 22 that turn in the slot 11 to hold the screws against endwise movement and so as to insure the forward and backward movement of the holder by the 25 turning of the'screw. The holders 19 are clamped to the bed by screw bolts 23 whose heads 24 engage the shouldered ways in the bed and whose shank portion passes up freely through slot 25 of the holder and have their threaded end portion engaged by r the clamping nuts 26.

In addition to the right and left hand threads provided on the adjusting screw mounted in .the lower slot- 13 for movingthe two outer shoes and holder 19 of of the lower series of rolls, I provide on said screw an intermediate plain or unthreaded portion 19 that has its bearing in the central shoe 17 of the lower series of rolls. The operative efiect therefore of this screw is to 'move the two outer rolls 27 g of the lower series sidewise, to and from the center roll 2? which'at all times remains in a central position with relation to the remaining rolls of that series.

A wire guide roll is thus carried on each I slide 19. so as to guide the wire, and. are

each journalled on a bolt 29, the threaded end of which is seated in a tapped hole in each slide19. The grooves 28in the face of the rolls of the two sets and series are in alignment, so that by adjusting the rolls, by the above described adjusting mechanism, different sizes 'of wire can be accommodated and straightened with improved results.

By way of a review of the description of the operation of my invention, it will be apparent that or represents a piece of wire positioned in the straightener as in the act of passing therethrough, first between one set of five rolls and then through the other set of a like number. In order to better accommodate different size wires, the rolls are all adjustable to and from the wire by 5. means of the adjusting screws 21. The

These adjustments.

center roll 27' of the lower series is not adjustable sidewise, but the adjacent rollon each side is adjustable sidewise to and from said center roll, by means of the screw 15. The upper rolls included in the upper series are also adjustable sidewise, that is, in line with the movement of the wire, so that they may beset at any desired distance apart and with relation to the position of the rolls in the lower series.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is

1. In a wire straightener of the class described, a series of aligned'rolls, and means for simultaneously adjusting said rolls in such manner that the same can at all times remain equal distances apart.

2. In a wire straightener of the class described, in a series of aligned rolls, and a single means for adjusting said rolls from and toward each other, whereby the rolls will at all times be spaced equal distances. apart.

3. In a wire straightener of the class described, a series of aligned rolls including an intermediate roll and rolls upon the opposite sides thereof, and means for simultaneously adjusting said rolls toward or from said intermediate rolli 4, In a wire straightener of the cless described, the combination of an up er aligne series of rolls, a lower aligne series of rolls, means for adjusting said rolls vertically toward and from a wire when posi- 100 tioned between said series, and means for simultaneously adjustin the outer rolls f one of the series towar and from the celiter roll of the same series.

5. In a wire straightener of the class de- 105 scribed, the combination of an u per series of rolls and a lower series of ro ls adapted to pass a wire between said series, means for adjusting the rolls toward and from the wire, and a single means for adjusting the rolls of each series toward and from each other.

6. In a wire straightener of the class described, the combination of a bed having a slot therein, guide shoes mounted in the slot, holders carried by the shoes, rolls mounted on the holders, means for adjusting the holders in one direction and inde endent means for adjusting both the shoes and holders in another direction. 4

7. In a wire straightener of the class described, the combination of a bed having a guideway therein, holders mounted on the bed, rolls mounted on the holders, means for adjusting the holders in one direction,

independent means for adjusting the holders 7 in another direction toward and from each" other, and means carried in the .guideway for securing theholders to the bed;

8. In a wire straightener of the class described, the combination of a bed having a slot therein, guide shoes mounted in the slot, holders carried by the shoes, rolls mounted on the holders, means for adjusting the holders in one direction, a screw having a right and left thread for adjusting the shoes and holders toward and from each other.

Signed at Bridgeport, in the county of Fairfield and State of Connecticut, this 22nd day of December A.'D., 1920.

- AXEL H. NILSON. Witnesses:

EDITH H. HUENERBERG, MARY E. KEELY. 

